Hose nozzle spray attachment



Feb. 24, 1970 T 5. RYDBERG 3,497,141

I HOSE NOZZLE SPRAY ATTACHMENT Filed Feb 5. 1968 INVENTOR: SIGGE RYDBERGUnited States Patent 3,497,141 HOSE NOZZLE SPRAY ATTACHMENT SiggeRydberg, 33 N. Middleton Ave., Palatine, Ill. 60067 Filed Feb. 5, 1968,Ser. No. 703,053 Int. Cl. Bb 1/26 US. Cl. 239512 2 Claims ABSTRACT OFTHE DISCLOSURE There is provided a spray attachment to be used with ahose nozzle such as a fire hose nozzle. The attachment includes a spraybaflle connected to the nozzle through a length of flexible line. Theattachment has a geometrical shape so that the attachment will follow ortrack with the stream from the nozzle.

This invention relates to attachments for a hose nozzle, particularly toa spray attachment or batlle associated with a fire hose nozzle.

It is frequently desirable to provide a spray of water against the innersurface of a burning wall or within a structure, rather than a stream ofwater which may miss the burning surface. This may be particularlydesirable in situations such as where an inside wall of a room isburning and the stream must be directed through a window or otheropening. It would be desirable to provide a spray into the room whichwill cover all of the walls of the room. Moreover heretofore it hasfrequently been neces sary to direct the stream of a fire hose from asnorkel or otherwise to get close to the burning structure in order todirect the stream even near the burning elements. Additionallydifliculties are frequently encountered with the larger size fire hosesin that they provide a substantial reaction and require a crew of men tohold and direct the nozzles.

Heretofore attachments have been known which may provide selected spraypatterns starting at the nozzle and extending out relatively shortdistances. However it is frequently desirable to provide spray a greaterdistance from the hose nozzle, and more particularly to cause dispersionof a confined stream at a distance from the nozzle.

Accordingly it would be desirable to provide a baflle or attachment fora hose nozzle which will track or follow the stream of water from thenozzle; which will spray or diffuse the stream into a spray in a desireddirection; which can be directed into rooms, through windows, or otheropenings from a remote distance; and which will minimize the reaction ofthe discharging stream to the hose nozzle. The force of the dispersedstream can also be made low enough to permit the stream to be directedon personnel.

It is therefore an object of the present invention to provide a sprayattachment for a hose nozzle which overcomes the above mentioneddifficulties and which posseses the above mentioned advantages.

Yet a further object of the present invention is to provide a new andimproved spray attachment for a hose nozzle.

Yet a further object of the present invention is to provide a sprayattachment for a hose nozzle which will track and follow the dischargingstream at a remote distance from the nozzle.

Further objects and advantages of the present invention will becomeapparent as the following description proceeds and the features ofnovelty which characterize the invention will be pointed out withparticularity in the claims annexed to and forming a part of thisspecification.

In accordance with these and many other objects of ice the presentinvention there is provided a new and improved spray attachment for ahose nozzle of the type including a generally converging body adapted tointercept a stream of discharging fluid from the nozzle so that theattachment will track and follow the stream to a remote point. Aflexible tie secured to the body is used to control the spacing betweenthe nozzle and the spray attachment. Suitable bafile means are securedto the body of the attachment for deflecting the stream in the desireddirection.

For a better understanding of the present invention reference may be hadto the accompanying drawings wherein:

FIG. 1 is a somewhat pictorial view illustrating the use of a new andimproved spray attachment according to the present invention;

FIG. 2 is a cross sectional view of the spray attachment illustrated inFIG. 1, according to the present invention;

FIG. 3 is a cross sectional view of another embodiment of a sprayattachment acording to the present invention;

FIG. 4 is a cross sectional view of yet another embodiment of a sprayattachment according to the present invention; and

FIG. 5 is a front view of the spray attachment of FIG. 4.

Referring now to the drawings and particularly to the embodiment of FIG.1, there is illustrated a fireman 10 using a spray attachment 12attached to a fire hose nozzle 13 in accordance with the presentinvention. As therein illustrated, the spray attachment 12 includes agenerally converging tubular body 14, here illustrated as frustoconicalin shape, having its large open end facing the hose nozzle 13 andconnected therewith through a flexible tie line or cable 15. The forceof discharging fluid 18, striking the inner wall of the body 14 willcause the spray attachment 12 to track and follow the discharging streammaintained substantially centered therewith. The body 14 may be attachedwith the tie 15 in any suitable manner and, in the illustratedembodiment of FIG. 1, the tie 15 includes a single strand 15a, which mayextend forty feet or more, and divides into four connecting strands 151)secured to two pairs of diametrically opposed apertures 26 in theforward edge of the side wall of the body 14.

A suitable baffle is provided for directing the stream outwardly in adesired direction. In the embodiment of FIG. 2, the bafile includes anozzle shaped ring insert 20, best illustrated in FIG. 2, spaced apartfrom the body 14, having a converging tubular portion 20a thattermimates in a reverse bend 20b which extends around the remote edge14a of the body 14. Thus fluid in the stream 18 striking between thetubular portion 20a and the inner surface of the body 14 will bedeflected by the reverse bend 20b into a generally rearward direction.The insert 20 is secured to the body 14 in any suitable manner as bystraps or ties 21. In addition the baflle includes an end plate 24generally transverse to the stream, spaced apart from the reverse bends20b of the insert 20 by straps or ties 25. The end plate 24 is somewhatflat, but provided with a centrally disposed inwardly projectingspherical portion 24a positioned to intercept the stream passing throughthe throat of the insert 20. Thus fluid from the stream 18 passingthrough the insert 20 will strike the end plate 24 and will be deflectedgenerally outwardly, as also illustrated in FIG. 1.

It will be understood from the illustration of FIG. 1 that the sprayattachment includes the tubular body 14 fixedly secured with referenceto the nozzle 13 through a suitable flexible tie. The geometric shape ofthe converging body 14 will cause the body 14 to track the stream 18from the nozzle. Moreover suitable baflle means, here shown as theinsert 20 and end plate 24, obtain the desired spray distribution.

FIG. 3 illustrates another embodiment of the invention wherein there isprovided a generally frusto conical body 34 to which is attached abafile 36 connected thereto by suitable straps 38. The baffle 36 is ofgenerally circular shape formed of two reverse bends 36a so that astream intercepted by the body 34 will strike against the baffle 36 andbe deflected outwardly and generally rearward.

FIGS. 4 and 5 illustrate an embodiment of the invention wherein a pairof transverse webs 45 extend between the inner side wall elements of afrustoconical body 46. A flexible connector or tie 48 is connected tothe webs 45 as at the point indicated at 45a. A suitable bafile 47 issecured to the remote end of the body 46 in any suitable manner, as byan extension 45b of the webs 45. The webs 45 add rigidity and aid instabilization and tracking of the spray attachment.

For projecting the spray a short distance at low pressure, a telescopingflexible tie may be used if desired.

From the above description it will be seen that the spray attachmentaccording to the present invention is provided with a geometry whichwill track the stream 18 of fluid from a nozzle 13. Moreover theattachment may be used from short distances up to one hundred feet ormore so that the spray may be directed through windows or other openingsof rooms and buildings. The force on the attachment provides acounterforce to the reaction of the stream 18 at the nozzle 13, thusminimizing the reaction force of the nozzle 13 and making the nozzle 13easier to handle and direct.

Although several embodiments of the present invention have beendescribed by way of illustration, numerous other embodiments may beprovided. For example, the geometry or the configuration of the bafllecan be changed to obtain the desired spray pattern. Thus it will beapparent that numerous other modifications and embodiments will bedevised by those skilled in the art which will fall within the truespirit and scope of the present invention.

4 What is claimed as new and desired to be secured by Letters Patent ofthe United States is:

1. A spray attachment for a nozzle such as a fire hose comprising:

a generally converging body adapted to intercept and track a stream offluid;

baffle means secured to said body for directing said intercepted streamoutwardly;

transverse web means extending between inner side wall elements of saidbody; and

flexible tie means for securing said body a remote distance from anozzle.

2. A spray attachment for a fire hose and the like comprising:

a nozzle member having an unobstructed nozzle for directing a stream offluid from the discharge end thereof;

a generally frusto-conically shaped body open at both ends and adaptedto intercept and track a stream of fluid;

flexible tie means having one end secured to said body positioning thelarger end of said body toward said nozzle member and having its otherend secured in proximity to said nozzle member out of interference witha discharged stream of fluid; and

baffle means secured to said body for directing an intercepted streamoutwardly.

References Cited UNITED STATES PATENTS 1,674,480 6/1928 Nelson 239-500 X1,745,297 1/ 1930 Harry 239-504 2,375,528 5/1945 De Flon 239-504 X2,448,472 8/ 1948 Schott 239-505 2,695,069 11/ 1954 Bocrner 239-4612,712,962 7/1955 Goddard 239-500 X SAMUEL F. COLEMAN, Primary Examiner

